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lana66690 [7]
3 years ago
11

How many solutions does the system have? 6x - y = -1 6x+y=-1

Mathematics
2 answers:
vova2212 [387]3 years ago
6 0

Answer:x=-1/6,y=0

Step-by-step explanation:

6x-y=-1....(1)

6x+y=-1...(2)

From (2) make y the subject of formula

Y=-1-6x...(3)

Substitute (3)in (1)

6x-(-1-6x)=-1

6x+1+6x=-1

Collect like terms

6x+6x=-1-1

12x=-2

X=-1/6...(4)

Substitute (4) in (3)

Y=-1-6(-1/6)

Y=-1+1

Y=0

Therefore,x=-1/6

Y=0

Bogdan [553]3 years ago
6 0

Answer:

x = - 1/6

y = 0

Step-by-step explanation:

It can be solved simultaneously

6x - y = -1

6x + y = -1

Subtract equation two from equation one

-2y = 0

Divide both sides by-2

y = 0/-2

y = 0

Substitute 0 for y in either of the equations to get x

Using equation one , we have

6x - 0 = -1

6x = -1

Divide both sides by 6

x = -1/6

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I need help<br> With this plz
s2008m [1.1K]

Answer:

The discount is the same.

Step-by-step explanation:

We need to find the ratios of both discounts.

41/50 = 61.5/75

If the question is True, this means that the ratios should be the same. So we have to cross multiply to find the answer.

75*41 = 50*61.5 = 3075

These two multiplication problems both equal 3075. Since the ratios are equal, the discounts are also equal.

4 0
3 years ago
GIVEN PARALLELOGRAM ABCD, FIND THE LENGTHS AND ANGLES REQUIRED
Scrat [10]
Co-interior properties. 180 degrees = two co-interior angles.

180 = (2y+50) + (3y+40)
180 = 5y + 90
90 = 5y
/5     /5
18 = y

Angle 1: 2y + 50
              2(18) + 50
              36 + 50
              86

Angle 2: 3y + 40
              3(18) + 40
              54 + 40
              94

86 + 94 = 180 so it is true.

Now the sides.
On a parallelogram, 5x+2 and 8x-7 must be equal

5x + 2 = 8x - 7
        2 = 3x - 7
        9 = 3x
       /3    /3
        3 = x

Side 1: 5x + 2
            5(3) + 2
           15 + 2
           17

Side 2: 8x - 7
            8(3) - 7
            24 - 7
            17

Both sides are equal; 17.

Angle 1: 86
Angle 2: 94
Sides: 17
6 0
3 years ago
What is the area for this?
mote1985 [20]
12.5 (area of triangle) +40 (area of rectangle)=52.5
7 0
2 years ago
Solve the equality, - (7c-18)-2c&gt;0
Gwar [14]
(7c-18)-2c>0

group like terms: 7c-2c-18>0

add similar elements: 7c-2c=5c
5c-18+18>0+18

Add 18 to both sides
5c-18+18>0+18

simplify
5c>18

divide both sides by 5
5c÷5>18/5

simplify
c>18/5
7 0
3 years ago
In a basketball game, Kyrie scored 5 less than twice as many as Steph. Combined the two scored 55 points. How many points did Ky
Aleonysh [2.5K]
Let steph score be x
Then kyrie score is 2x-5
Sum of the two scores is 55
Therefore x+2x-5=55
3x-5=55
3x=60
x=20

Therefore steph score is 20
And kyrie score is 2(20)-5
40-5=35
5 0
2 years ago
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